Because sample means were being tested, the is used to calculate the z-score.
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Answer:
Step-by-step explanation:
An isosceles ∆ has 2 equal sides. The perimeter of a ∆ is the sum of all its sides.
Given that the perimeter of the triangle above is "at least 137 ft", this means the sum of all its sides is equal to or greater than 137 ft.
Thus, using inequality, this can be represented as:
Solve for x
Add like terms
Subtract 17 from both sides
Divide both sides by 8